Key Highlights
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Manufactured to International Recommendation OIML R111 specifications
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OIML Class E1 accuracy for ultra-high precision calibration
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Complete calibration weight set from 500 mg through 50 g
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Supplied with protective case, additional small case or vial if required
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Includes handling equipment for safe and contamination-free use
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High-polish surface finish for maximum mass stability
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Accredited calibration certificate included
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Designed for primary reference and analytical balance calibration
The 500 mg â 50 g Calibration Weight Set, OIML Class E1 is a precision-engineered mass standard set designed for laboratories that demand the highest level of accuracy and traceability. Manufactured in full compliance with OIML R111 international standards, this E1 class set is suitable for use as a primary reference in controlled laboratory environments.
The set includes multiple individual E1 calibration weights covering micro and gram ranges, supplied in a protective case with appropriate handling equipment. A polished surface finish minimizes contamination and supports long-term stability. An accredited calibration certificate is supplied, making this set suitable for accreditation audits, reference calibration systems, and metrology-grade applications.
E1 class weight sets are commonly used for calibrating Class I and Class II analytical balances in pharmaceutical, research, and national metrology laboratories.
Applications
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Calibration of Class I and Class II analytical balances
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Primary reference mass standards
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Laboratory traceability systems
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Tolerance testing and compliance verification
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Research and metrology laboratories
Specifications
| Specification | Details |
|---|---|
| Weight Range | 500 mg â 50 g |
| Accuracy Class | OIML E1 |
| Standard | OIML R111 |
| Surface Finish | Polished |
| Material Density | 7.95 g/cm3 |
| Certificate | Accredited calibration certificate included |
| Packaging | Protective case with handling equipment |
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500 mg through 50 g OIML Weight Set Contents
| Set Range | 500 mg â 1 mg | 500 mg â 100 mg | 50 g â 1 mg | 50 g â 1 g |
|---|---|---|---|---|
| Included Weights | 1 Ã 500 mg 2 Ã 200 mg 1 Ã 100 mg 1 Ã 50 mg 2 Ã 20 mg 1 Ã 10 mg 1 Ã 5 mg 2 Ã 2 mg 1 Ã 1 mg |
1 Ã 500 mg 2 Ã 200 mg 1 Ã 100 mg |
1 Ã 50 g 2 Ã 20 g 1 Ã 10 g 1 Ã 5 g 2 Ã 2 g 1 Ã 1 g 1 Ã 500 mg 2 Ã 200 mg 1 Ã 100 mg 1 Ã 50 mg 2 Ã 20 mg 1 Ã 10 mg 1 Ã 5 mg 2 Ã 2 mg 1 Ã 1 mg |
1 Ã 50 g 2 Ã 20 g 1 Ã 10 g 1 Ã 5 g 2 Ã 2 g 1 Ã 1 g |
| Piece Count | 12 | 4 | 20 | 8 |
| Total Weight | 1.11 g | 1 g | 111.11 g | 108 g |
| Class E1 Part # | 30850 | 30854 | â | â |
| Class E2 Part # | 30851 | 30855 | 96477 | 96478 |
| Class F1 Part # | 30852 | 30856 | 96479 | 96480 |
| Class F2 Part # | 30853 | 30857 | 96481 | 96482 |
| Class M1 Part # | 161537 | â | â | â |
Larger OIML Weight Sets
| Set Range | 500 g â 1 mg | 1 lb | 8 lb | 7.72 lb |
|---|---|---|---|---|
| Piece Count | 7 | 9 | 13 | 16 |
| Total Weight | 710 g | 1 lb | 8 lb | 7.72 lb |
| Part # | 12545 | 12630 | 12652 | 12659 |
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Ensure uncompromising accuracy with OIML Class E1 calibration weight sets from SellEton Scales. Contact our team today to request pricing, confirm availability, or speak with a calibration specialist for your laboratory requirements.
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Express Shipping: Overnight and faster shipping options available at additional costs. Quotes obtainable via email.
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